added functions for resetting and reloading snippets

plugin/snipMate.vim

@@ -1,6 +1,6 @@
 " File:          snipMate.vim
 " Author:        Michael Sanders
-" Version:       0.83
+" Version:       0.84
 " Description:   snipMate.vim implements some of TextMate's snippets features in
 "                Vim. A snippet is a piece of often-typed text that you can
 "                insert into your document using a trigger word followed by a "<tab>".
@@ -91,10 +91,35 @@ fun! ExtractSnipsFile(file, ft)
 	endfor
 endf
 
-fun! ResetSnippets()
+" Reset snippets for filetype.
+fun! ResetSnippets(ft)
+	let ft = a:ft == '' ? '_' : a:ft
+	for dict in [s:snippets, s:multi_snips, g:did_ft]
+		if has_key(dict, ft)
+			unlet dict[ft]
+		endif
+	endfor
+endf
+
+" Reset snippets for all filetypes.
+fun! ResetAllSnippets()
 	let s:snippets = {} | let s:multi_snips = {} | let g:did_ft = {}
 endf
 
+" Reload snippets for filetype.
+fun! ReloadSnippets(ft)
+	let ft = a:ft == '' ? '_' : a:ft
+	call ResetSnippets(ft)
+	call GetSnippets(g:snippets_dir, ft)
+endf
+
+" Reload snippets for all filetypes.
+fun! ReloadAllSnippets()
+	for ft in keys(g:did_ft)
+		call ReloadSnippets(ft)
+	endfor
+endf
+
 let g:did_ft = {}
 fun! GetSnippets(dir, filetypes)
 	for ft in split(a:filetypes, '\.')
@@ -147,7 +172,7 @@ fun! TriggerSnippet()
 		" the snippet.
 		if snippet != ''
 			let col = col('.') - len(trigger)
-			sil exe 's/\V'.escape(trigger, '/.').'\%#//'
+			sil exe 's/\V'.escape(trigger, '/\.').'\%#//'
 			return snipMate#expandSnip(snippet, col)
 		endif
 	endfor